隐藏Invoke-WebRequest的进度

Question

如何隐藏Invoke-WebRequest的进度显示？我做了很多连续的请求，并且有我自己使用的Write-Progress显示器，所以我不需要每次都在它下面弹出内置的一个。

我使用从Invoke-WebRequest的结果自动创建的mshtml结果( IE对象)，因此我不能切换到WebClient或类似的东西，除非有人提供如何从WebClient请求中获取mshtml对象的说明。

Answer 1

使用$progressPreference变量。默认情况下，它的值应该是'Continue‘，除非您在其他地方对其进行了编辑，这会告诉Powershell显示进度条。由于您提到您有自己的自定义进度显示，因此我将在执行cmdlet后立即重置它。例如：

$ProgressPreference = 'SilentlyContinue'    # Subsequent calls do not display UI.
Invoke-WebRequest ...
$ProgressPreference = 'Continue'            # Subsequent calls do display UI.
Write-Progress ...

有关偏好变量的更多信息，请访问about_preference_variables。下面是$ProgressPreference的条目：

$ProgressPreference
-------------------
Determines how Windows PowerShell responds to progress updates 
        generated by a script, cmdlet or provider, such as the progress bars
        generated by the Write-Progress cmdlet. The Write-Progress cmdlet 
        creates progress bars that depict the status of a command.

        Valid values:
          Stop:               Does not display the progress bar. Instead,
                                it displays an error message and stops executing.

          Inquire:            Does not display the progress bar. Prompts
                                for permission to continue. If you reply
                                with Y or A, it displays the progress bar.

          Continue:           Displays the progress bar and continues with
          (Default)             execution.

          SilentlyContinue:   Executes the command, but does not display
                                the progress bar.